package thread;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadPoolExecutor;

public class ThreadPoolDemo {
    public static void main(String[] args) {
        ExecutorService threadPool = Executors.newFixedThreadPool(2);
        ThreadPoolExecutor poolExecutor = null;

        for (int i = 0 ; i < 5 ; i++){
            Runnable r = new Runnable() {
                @Override
                public void run() {
                    Thread t = Thread.currentThread();//获取执行当前任务的线程
                    System.out.println(t.getName()+ "正在执行任务...");
                    try {
                        Thread.sleep(5000);
                    } catch (InterruptedException e) {
//                        e.printStackTrace();
                    }
                    System.out.println(t.getName()+":任务执行完毕！");
                }
            };
            threadPool.execute(r);//将任务交给线程池
            System.out.println("交给线程池一个任务");

        }
//        threadPool.shutdown();
//        threadPool.shutdownNow();
        System.out.println("线程池关闭了");
    }
}
